Table 1 Comparison of RECIST version 1.1 and the Choi criteria
RECIST version 1.1 | Choi criteria | |
|---|---|---|
CR | Disappearance of all lesions No new lesions | Disappearance of all lesions No new lesions |
PR | A decrease in sizea of ≥30% | A decrease in sizea of ≥10% or a decrease in tumor density (HU) of ≥15% in CT No new lesions No obvious progression of immeasurable disease |
SD | Neither sufficient shrinkage to qualify for PR nor a sufficient increase to qualify for PD | Does not meet the criteria for CR, PR, or PD No symptomatic deterioration attributable to tumor progression |
PD | An increase in sizea of ≥20% New lesions New intratumoral nodules or increase in the size of the existing intratumoral nodules | An increase in tumor sizea of ≥10% and does not meet the criteria for PR based on tumor density (HU) in CT New lesions New intratumoral nodules or an increase in the size of the existing intratumoral nodules |